Convert Lowercase to Uppercase

Turn any lowercase text into clean ALL CAPS. Great for headlines, acronyms and constants.

Turn lowercase text into ALL CAPS instantly. Free uppercase converter for headings, emphasis and code constants. Every lowercase letter is raised.

Convert Lowercase to Uppercase examples

InputOutput
quiet text that needs emphasisQUIET TEXT THAT NEEDS EMPHASIS

How the convert lowercase to uppercase works

  1. Paste the lowercase text.
  2. Every character is uppercased with Unicode-aware mapping.
  3. Copy the ALL CAPS result.

Rules and edge cases

  • Every lowercase letter is raised, including accented characters: straße becomes STRASSE and øre becomes ØRE.
  • Already capitalised letters, digits and punctuation are unchanged, so mixed text converts cleanly.
  • Line breaks and spacing survive, which matters when capitalising headings inside a longer document.

Frequently asked questions

Should I capitalise a heading in the text or with CSS?

Use CSS text-transform: uppercase for purely visual emphasis so the underlying text stays readable for screen readers and search engines. Convert the actual characters only when the destination has no styling.

Why is ß converted to SS?

Standard German has no single uppercase ß in general use, so Unicode maps it to SS. The capital ẞ exists but is not the default mapping.